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Table 1 Detailed description of the mapping populations used for consensus linkage map construction and QTL analysis

From: EST-derived SSR markers used as anchor loci for the construction of a consensus linkage map in ryegrass (Lolium spp.)

Mapping population

Population design

Institution

Population size (number of individuals used for mapping)

Map reference

Number of mapped Gxx EST-SSRs

Traits assessed

Trait reference

ILGI

Lolium perenne, one-way pseudo-testcross (progeny of a cross between a di-haploid and a hybrid F1 plant)

IBERS, UK

183 (183)

[51]

3

Self incompatibility

Plant fertility

Plant morphology

[4]

[7]

[3]

VrnA

Lolium perenne, F2, two-way pseudo-testcross

DJF, DK

184 (172)

[8]

138

Vernalization response

Crown rust resistance Powdery mildew

Seed yield

[8]

[9]

[10]

[11]

pop8490

Lolium perenne, F1, two-way pseudo-testcross

INRA, F

185(185)

[12, 13]

40

Plant morphology

Crown rust resistance

[12]

WSC

Lolium perenne, F2 (selfings of a single hybrid, obtained by crossing two partially inbred plants)

IBERS, UK

188 (188)

[32]

4

Water-soluble carbohydrates (sucrose, glucose and fructose)

Plant fertility

[15]

[7]

TC1*SB2

Lolium perenne, F1, two-way pseudo-testcross

ILVO, B

281 (281)

[16]

1

Crown rust resistance

[16]

[25]

lpOA

Lolium perenne, F1, two-way pseudo-testcross

ILVO, B

147 (147)

Unpublished data

44

Crown rust resistance

Seed set

Unpublished data

ZX

Lolium perenne, one-way pseudo-testcross (progeny of a cross between a di-haploid plant and LTS01)

PRI, NL

90 (90)

[17]

7

Nitrogen use efficiency

[17]

F2 biomass

Lolium perenne, F2 (selfings of a single hybrid, obtained by crossing two partially inbred plants)

TEAGASC, IRL

366 (363)

[43]

19

Segregation distortion

Biomass

[43]

[18]

Xtg-ART

Lolium multiflorum, F1, two-way pseudo-testcross

ART, CH

306 (96)

[19]

109

Bacterial wilt

Crown rust resistance

[19]

[23]

  1. Mapping data of VrnA, Xtg-ART, lpOA, pop8490, F2 biomass, WSC and ILGI were combined for map integration and used for the construction of the ryegrass consensus map. The Lolium multiflorum Xtg-ART and the Lolium perenne TC1*SB2 were used to compare QTL for crown rust resistance.